Frequency Comb Breathalyzer
Hosted By: Applied Spectroscopy Technical Group
10 November 2022 15:00 - 16:00
Eastern Time (US & Canada) (UTC - 05:00)There are many ways to diagnose health conditions. One of the most common methods is blood testing. This test can look for hundreds of different kinds of molecules in the body to determine if an individual has any diseases or underlying conditions. Not everyone is a fan of needles, which makes blood tests a big deal for some people.
Another method of diagnosis is breath analysis. In this process, an individual's breath is measured for different molecules as indicators of certain health conditions. Breath analysis has been fast progressing in recent years and is continuing to gain more and more research interest. However, it is experimentally challenging due to the edeficientconcentrations of molecules present in each breath, the limited number of detectable molecular species, and the long data-analysis time required.
In this webinar hosted by the Applied Spectroscopy Technical Group, David Nesbitt will discuss the JILA-based collaboration between his lab and the lab of Jun Ye that has resulted in a more robust and precise breath-testing apparatus. In combining a particular type of laser with a mirrored cavity, the team of researchers was able to precisely measure four molecules in a human breath at unprecedented sensitivity levels, with the promise of measuring many more types of molecules.
Subject Matter Level: Introductory - Assumes little previous knowledge of the topic
What You Will Learn:
• Laser frequency comb
• Mid-infrared cavity-enhanced direct-frequency comb spectroscopy
• Machine learning-based breath analysis, including the detection of COVID-19
Who Should Attend:
• Undergrad and grad students from different fields such as optics, chemistry, biochemistry, biomedical engineering
• Academic sector from different fields
• Industry (analytical spectroscopy, biosensing, frequency comb)
About the Presenter: David Nesbitt from JILA and University of Colorado Boulder
David Nesbitt is a Fellow of JILA, a Physicist at the National Institute of Standards and Technology (NIST), and a Professor in the Department of Chemistry and Biochemistry and the Department of Physics. He received this Ph.D. at the University of Colorado in 1981. Nesbitt is a Fellow of AAAS, ACS, APS, Royal Society of Chemistry in the UK. He received several awards and honors, including the Presidential Rank Award, Department of Commerce, 2009; Bourke Medal, Royal Society of Chemistry, Faraday Division, 2002; Alexander von Humboldt Fellowship, 1999; William F. Meggers Award, The Optical Society, 1999; etc. Prof. Nesbitt’s research is in laser studies of spectroscopy, reaction dynamics, and single molecule microscopy: chemical physics, nanomaterials, and biophysics. A central unifying goal of the research program is the elucidation of fundamental kinetics and dynamics of elementary chemical/biophysical processes from both experimental and theoretical perspectives.